一种基于弧长控制的摆动电弧焊缝跟踪偏差信号处理方法  

Treatment Methods for Swing Arc Seam Tracking Error Signal Based on Arc-length Control

作　　者：洪波[1] 王旭[1] 张淇淋[1] 祝团结[1] 

机构地区：[1]湘潭大学机械工程学院,湖南湘潭411105

出　　处：《热加工工艺》2010年第17期135-138,共4页Hot Working Technology

基　　金：国家自然科学基金资助项目(50975243)

摘　　要：针对目前常用提取偏差信息的左右积分比较法对V型不对称坡口不适用的情况,结合摆动电弧传感器低频率的特点,提出一种半周期单边积分比较法判断焊枪位置,并采用弧长控制的算法来提取偏差。经实验证明,半周期单边积分比较法用于低频率的摆动电弧传感器,解决左右积分比较法对V型不对称坡口存在的误判是可行的,跟踪效果良好。The left-right integral comparison method,which is commonly used to extract deviation information,does not apply to asymmetric V-groove.Combining with the characteristics of low-frequency oscillating arc sensor,half-cycle integration of comparative law to judge sided gun position was presented and the arc-length control algorithm was used to extract the deviation.The results show that when unilateral half-cycle integral comparison method is used for the low-frequency oscillations arc sensors,the wrong justice caused by the unapplication of left-right integral comparison method in asymmetric V-groove can be solved and the tracking effect is good.

关 键 词：摆动电弧传感器 焊缝跟踪 弧长算法 积分比较法 信号处理 

分 类 号：TG444.2[金属学及工艺—焊接]